Home / 817,290.68-1,127,832.72-449,733.46

Finding the Fourth Proportional to 817,290.68, 1,127,832.72 and 449,733.46

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Solution

The fourth proportional to 817,290.68, 1,127,832.72 and 449,733.46 is: 620,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,290.68 : 1,127,832.72 = 449,733.46 : x
  2. Step 2: Convert to fraction form
    817,290.68/1,127,832.72 = 449,733.46/x
  3. Step 3: Cross multiply
    817,290.68x = 1,127,832.72 × 449,733.46
  4. Step 4: Simplify right side
    817,290.68x = 507,224,111,466.81
  5. Step 5: Solve for x
    x = 507,224,111,466.81/817,290.68
  6. Step 6: Final answer
    x = 620,616.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.